I'm not an expert by any stretch of the imagination,
but certainly in the unix version you can't have a variable
called 'r' one of your variables is called 'R' and this may
be causing the same problem eventhough you're not getting 
the message that I got.  

Are you getting any error messages?  If so please post the 
error message and someone will be able to give you more help.

-- 
Cheers
Steve              email mailto:sjl### [at] ndirectcouk

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